Liquid crystal display device

Abstract

A liquid crystal display device includes a liquid crystal display panel, a backlight unit under the liquid crystal display panel, and a guide panel surrounding the backlight unit. The guide panel includes a metal chassis, a first mold, and a second mold. The metal chassis has a plate shape, includes a plurality of through holes, and is formed of a metal material. The first mold is on at least a part of an upper surface and a lateral surface of the metal chassis and within the through holes and is formed of a light absorbing resin. The second mold is between the first mold and the backlight unit and is formed of a light reflecting resin.

What is claimed is: 
     
       1. A liquid crystal display device comprising:
 a liquid crystal display panel; 
 a backlight unit under the liquid crystal display panel comprising a light guide plate and a reflecting plate under the light guide plate; 
 a guide panel surrounding the backlight unit, the guide panel including: 
 a metal chassis of a plate shape under the reflecting plate and formed with a plurality of through holes; 
 a first mold on at least a part of an upper surface of the metal chassis and a lateral surface of the metal chassis, the first mold having a plurality of extended parts filling the plurality of through holes, the first mold formed of a light absorbing resin; and 
 a second mold between the first mold and the light guide plate, the second mold formed of a light reflecting resin. 
 
     
     
       2. The liquid crystal display device according to  claim 1 , wherein the first mold includes:
 a side wall corresponding to a lateral part of the guide panel; and 
 a plurality of protruded surfaces protruded from the side wall towards the inside of the guide panel, the plurality of extended parts extended from the protruded surfaces into the plurality of through holes and filling the plurality of through holes. 
 
     
     
       3. The liquid crystal display device according to  claim 2 , wherein the second mold is in contact with the side wall and the protruded surfaces. 
     
     
       4. The liquid crystal display device according to  claim 3 , wherein a width of the second mold is thinner than a protruded length of the protruded surfaces. 
     
     
       5. The liquid crystal display device according to  claim 2 , wherein the backlight unit includes:
 an optical sheet on the light guide plate. 
 
     
     
       6. The liquid crystal display device according to  claim 5 , wherein the light guide plate is on the protruded surfaces. 
     
     
       7. The liquid crystal display device according to  claim 2 , wherein the through hole includes a portion having a cross-sectional area which increases away from the protruded surfaces. 
     
     
       8. The liquid crystal display device according to  claim 2 ,
 wherein the second mold includes a first surface and a second surface which forms a step, 
 the first surface is in contact with the side wall and has a same level as an upper surface of the side wall, and 
 the second surface is separated from the side wall and is disposed at a lower level than the first surface. 
 
     
     
       9. The liquid crystal display device according to  claim 8 , wherein an optical sheet of the backlight unit is on an upper end of the second surface. 
     
     
       10. The liquid crystal display device according to  claim 1 , wherein the second mold contacts at least three surfaces of the first mold. 
     
     
       11. The liquid crystal display device according to  claim 1 , wherein the light absorbing resin includes a black resin and the light reflecting resin includes a white resin. 
     
     
       12. A liquid crystal display device comprising:
 a liquid crystal display panel; 
 a backlight unit under the liquid crystal display panel comprising a reflecting plate reflecting light incident on the reflecting plate towards the liquid crystal display panel; and 
 a guide panel surrounding the backlight unit, the guide panel including: 
 a first mold surrounding the backlight unit and configured to absorb light, the first mold comprising side walls, and protruded surfaces protruding inwards from the side walls; 
 a second mold between the first mold and the backlight unit, the second mold configured to reflect light, a width of the second mold thinner than a protruded length of the protruded surfaces; and 
 a metal chassis combined with the first mold and supporting the first mold so as to suppress bending or torsion of the first mold and the second mold. 
 
     
     
       13. The liquid crystal display device according to  claim 12 , wherein the metal chassis includes a plurality of through holes,
 the first mold comprises extended parts on the protruded surfaces that extend into the plurality of through holes.